I understand how to use them, but my question is when, or what is the point/need. When is the right time to use them, are there any situations when I should use them. If anyone has any clarification on this, please let me know!
Please refrain from asking a question that can be found with an easy google search. I looked up basically what you were asking and got this great answer to your problem. Hope this helps and have a great day scripting!